Field of Snores (Revisited)

I thought that Baseball Season in my house would have ended by now. I was mistaken. It has not only continued, it has gained in intensity. Non-amusing in the extreme.

It would appear that my male two leggers favorite team refuses to stop playing. In all previous years, they have quit playing by mid September and the male two legger has restricted his yelling at the talking box thingy to Sundays when he watches football. But this baseball playoff madness seems to have no end.

Apparently his team, the Rangers, are competing with the Giants in The World Series. I have heard that the winners of this competition get to wear special jewelry and then go visit a six foot tall talking mouse thingy named "Mickey". Big deal.

However, something puzzles me. Where do the two leggers come up with the names of their teams? I have pondered this at length and have reached no satisfactory conclusions. Please allow me to explain my confusion:

The Giants: They do not appear monstrously large.
The Rangers: They do not seem to wander any more than the other teams.
The Mariner: They wear neither floppy hats nor eyepatches, however it seems that their ship has indeed sailed.
The Indians: They appear be to neither Native American nor Hindu.

And finally, The Yankees. This moniker is possibly the most confusing of all. It is my understanding that in order to have a "Yankee", there must first be a "Yanker" I do not understand how there can be the one without there being the other. So I took a poll. I inquired of of all the people that I know that follow baseball. Here are the results:
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2% said that I misunderstood the term "Yankee" (Highly doubtful, and their shoes will pay later)
3% said they didn't know.
95 % said "Yankees" and "Yankers" are synonymous.

This greatly amused my two legger